Installation, operation and maintenance instructions30HXC 075-37030GX 080-350Screw CompressorWater-Cooled Chillers andAir-Cooled Chillers30HXC Nominal
10DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.)30GX 205-265NOTE : Refer to certified dimensional drawings 99DI 205GX when designing an installat
11DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.)30GX 280-350NOTE : Refer to certified dimensional drawings 99DI 280GX when designing an installat
12MAIN COMPONENTS LOCATION30HXC 075-185Legend:ACircuit ABCircuit BWater inlet (flanges supplied)Water outlet (flanges supplied)12 1211 113212021202522
13MAIN COMPONENTS LOCATION (CONT.)30HXC 215-280Legend :ACircuit ABCircuit BITEM DESIGNATION1 Cooler water inlet and outlet2 Cooler 3/8" NPT air v
14PHYSICAL DATA30HXC30HXC 075 085 095 105 115 125 135 145 160 170 185Nominal gross cooling capacity* kW 268 295 346 373 404 439 485 519 550 593 639Ope
15ELECTRICAL DATA30HXC30HXC 075 085 095 105 115 125 135 145 160 170 185Mains power supplyNominal voltage V-ph-Hz 400-3-50Voltage range % ± 10Control c
16PHYSICAL DATA30GX30GX 080 090 105 115 125 135 150 160 175Nominal gross cooling capacity* kW 262 290 330 373 405 438 484 526 576Operating weight kg 3
17ELECTRICAL DATA30GXCompressorPART NUMBER Tons LRA (Y) LRA (Delta) MHA06NA 1146 S7 N 39 191 605 10406NA 1174 S7 N 46 226 715 12606NA 1209 S7 N 56 270
18APPLICATION DATAUnit operating rangeCooler Minimum MaximumCooler entering water temperature °C 6.8* 21Cooler leaving water temperature °C 4** 15Cond
19Variable flow evaporatorVariable evaporator flow can be used in standard 30HXC and 30GXchillers. The chillers maintain a constant leaving water temp
2The cover photograph is for illustrative purposes onlyand is not part of any offer for sale or contract.
20Flow controllersCooler flow switch and chilled water pump interlockIMPORTANTIt is mandatory to install cooler flow switch and also to connectchilled
21LIFTING INSTRUCTIONS30HXC 075-185This diagram is shown for information only. Refer to “certifieddrawings” delivered with the unit.30HXC X (mm) Y (mm
22LIFTING INSTRUCTIONS (CONT.)30HXC 215-280This diagram is shown for information only. Refer to “certifieddrawings” delivered with the unit. CENTER O
23LIFTING INSTRUCTIONS (CONT.)30HXC 300-370This diagram is shown for information only. Refer to “certifieddrawings” delivered with the unit. CENTER O
24LIFTING INSTRUCTIONS (CONT.)30GX 080-160This diagram is shown for information only. Refer to “certifieddrawings” delivered with the unit. CENTER OF
25LIFTING INSTRUCTIONS (CONT.)30GX 205-265This diagram is shown for information only. Refer to “certifieddrawings” delivered with the unit.30GX X (mm)
26153726104812 911PIPING CONNECTIONSRefer to the certified dimensional drawings for the sizes andpositions of all water inlet and outlet connections.
27ELECTRICAL CHARACTERISTICS• The 30HXC 075-185 and 30GX 080-175 have only one powerterminal block.• The 30HXC 215-370 and 30GX 205-350 have two power
28FIELD POWER SUPPLY30HXC 075-185Electrical boxS mm2S mm230HXC A (mm) B (mm) Min. Max.075-115 125 236 70 120125 125 236 95 120135-185 136 200 120 185S
29FIELD POWER SUPPLY (CONT.)30HXC 215-280Electrical boxSA mm2SB mm230HXC A (mm) Min. Max. Min. Max.215-280 125 120 185 70 120SA mm2SB mm230HXC A (mm)
3List of contentsINTRODUCTION ... 4SAFETY CONSIDERATIONS ...
30FIELD POWER SUPPLY (CONT.)30HXC 300-370Electrical boxSA mm2SB mm230HXC A (mm) B (mm) Min. Max.300 125 236 95 120315-370 125 200 120 185SA mm2SB mm23
31FIELD POWER SUPPLY (CONT.)30GX 080-160Electrical boxFIELD CONTROL WIRINGRefer to the Certified Electrical Wiring Diagram supplied withthe unit for t
32FIELD POWER SUPPLY (CONT.)30GX 175Electrical boxS mm230GX Min. Max.175 2x120 2x300Power terminal block Main disconnect switchIMPORTANTBefore the con
33FIELD POWER SUPPLY (CONT.)30GX 205-265Electrical boxSA mm2SB mm230GX Min. Max. Min. Max.205 240 300 95 185225 240 300 120 185250 2x120 2x185 120 185
34FIELD POWER SUPPLY (CONT.)30GX 280-350Electrical boxSA mm2SB mm230HXC Min. Max. Min. Max.280-295 2x120 2x300 240 300325 2x150 2x300 2x120 2x300350 2
35MAJOR SYSTEM COMPONENTSAND OPERATION DATAGeared twin screw compressor• 30HXC and 30GX units use 06N geared twin screwcompressors• 06NA are used on 3
36the EXV flashes to vapor, further subcooling the liquid that ismaintained at the bottom of the economizer. This increase insubcooling provides addit
37Control componentsProcessor module (PSIO)It contains the operating software and controls the operation of themachine. It has 12 input channels and 6
38The CPM communicates on the COMM3 communication bus tothe PSIO module. Proper operation of the CPM board can be verifiedby observing the three LED&a
39CONTROL OPERATIONKeypad and display module usage (HSIO II)FUNCTION USEKEYS<STAT> STATUS - For displaying diagnostic codes and currentoperating
4INTRODUCTIONPrior to initial start-up of the 30HXC and 30GX unit, thoseinvolved in the start-up, operation, and maintenance should bethoroughly famil
40Accessing functions and subfunctionsOPERATION KEYPAD ENTRY DISPLAY RESPONSETo access a function, press subfunction <1> <TEST> Circuit A
41Status functionThis function shows the rotating display, current status of alarmand alert (diagnostic) codes, capacity stages, operating modes,chill
42STATUS (CONT.)SUBFUNCTION KEYPAD DISPLAY COMMENTENTRY4 Circuit A discrete <4><STAT> CIR. A DISCRETE OUTPUTSOutputs<↓> Compressor A
43STATUS (CONT.)SUBFUNCTION KEYPAD DISPLAY COMMENTENTRY<↓> 2 CHLLR COMM FAILURE<↓> CIR A LOW DISCHG SUPERHT<↓> CIR B LOW DISCHG SUPE
44TEST (CONT.)SUBFUNCTION KEYPAD DISPLAY COMMENTENTRY4 Valves and <4><TEST> VALVES AND MOTOR MASTERMotor Master <↓> Circuit A EXV Va
45SERVICE (CONT.)SUBFUNCTION KEYPAD DISPLAY COMMENTENTRY<↓> Water Valve Type 0 = None (Default),1 = 4-20 mA,2 = 0-10 V,3 = 20-4 mA,4 = 10-0 V<
46History function and subfunctionsHISTORYSUBFUNCTION KEYPAD DISPLAY COMMENTENTRY1 Operating Hours <1> <HIST> Machine Operating Hoursxxx.x
47Setpoint functionSetpoints are entered through the keypad. Setpoints can bechanged within the upper and lower limits, which are fixed. Theranges are
48Head pressure controlGeneralThe microprocessor controls the condenser fans (30GX) oranalogue water valve (30HXC) to maintain the saturatedcondensing
4930GX fan arrangement30GX 080-090-10530GX 115-125-13530GX 150-16030GX 175-205-22530GX 250-26530GX 28030GX 29530GX 325-350Fan stage Fans controlled on
5DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION30HXC 075-185NOTE : Refer to certified dimensional drawings 99DI 075HX when designing an installation.P1ØS
50PRE-START-UP PROCEDUREDo not attempt to start the chiller until the following checks havebeen completed.System Check1 - Check all auxiliary componen
51TROUBLESHOOTINGThe 30HXC/GX Screw chiller control has many features to aidthe technicians in troubleshooting. By using the keypad anddisplay module
52Alarm/Alert Alarm Description Why was this Action taken Reset Probablecode or Alert alarm generated ? by control method cause0 – No alarms or alerts
53Alarm/Alert Alarm Description Why was this Action taken Reset Probablecode or Alert alarm generated ? by control method cause11 Alert Condenser leav
54Alarm/Alert Alarm Description Why was this Action taken Reset Probablecode or Alert alarm generated ? by control method cause40 Alert Compressor A1
55Alarm/Alert Alarm Description Why was this Action taken Reset Probablecode or Alert alarm generated ? by control method cause67 Alert Circuit A high
56The two setpoints are used by the control for the low oil pressurealert trip criteria below:1. Oil Pressure is ignored during the first five seconds
57MAINTENANCERefrigerant Charging - Adding ChargeIMPORTANTThese units are designed for use with R-134a only. DO NOTUSE ANY OTHER refrigerant in these
585. Add 2.5 kg of liquid charge into the cooler using chargingvalve located in the top of the cooler.6. Allow the system to stabilize and then rechec
59Service replacement compressorCompressor rotation controlCorrect compressor rotation is one of the most critical applicationconsiderations. Reverse
6DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.)30HXC 215-280NOTE : Refer to certified dimensional drawings 99DI 215HX when designing an installat
60START-UP CKECKLIST FOR 30HXC/GX LIQUID CHILLERS (USE FOR JOB FILE)Preliminary informationJob name: ...
61Check condenser system (30HXC) All condenser water valves are open All condenser piping is connected properly All air has been vented from the syste
62Check pressure drop across the condenser (30HXC only)Entering condenser = ... (kPa)Leaving condenser =...
63 Review and record field configuration, <2> <SRVC>External reset sensor ...
Manufacturer reserves the right to change any product specifications without notice.Manufacturer: Carrier s.a., Montluel, France.BP 49 Route de Thil01
7DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.)30HXC 300-370NOTE : Refer to certified dimensional drawings 99DI 300HX when designing an installat
8DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.)30GX 080-160NOTE : Refer to certified dimensional drawings 99DI 080GX when designing an installati
9DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.)30GX 175NOTE : Refer to certified dimensional drawings 99DI 175GX when designing an installation.N
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